Specifications

Audio International, Inc. A/V-9691-01(-02)-x Installation & Operation Manual
Document # 540250, Rev D, 07/2004
Page 9 of 33
PA/Chime Priority Hierarchy: The following lists the audio input
priorities internal to the PA/chime functionality of the
A/V-9691-01(-02)-x unit.
• Pilot microphone audio input (Highest)
• Copilot microphone audio input
• Cabin microphone audio input
• Two-tone chime input #1
• Two-tone chime input #2
• Two-tone chime input #3
• High-tone chime input #1
• High-tone chime input #2
• Low-tone chime input #1
• Low-tone chime input #2
• Cabin ringer input
• Audio briefer input
• Cockpit chime input (Lowest)
2.1.9 Emergency power input provides for necessary power for amplifiers
and PA/chimes controls during emergency conditions. If amplifiers
are configured for full range operation (split-cabin), then both
amplifiers will be powered when this input is activated. If amplifiers
are configured for bi-level operation, then the amplifier configured
for subwoofer operation will not be active when this input is
activated if speakers were not active before PA/Chime activation.
As shown in the above diagram, the two (2) power inputs on the
P13 connector are wired in a diode ‘OR’ configuration allowing for
operation from more than a single power bus.